Home / 3,124.61-4,686.56-933.18

Finding the Fourth Proportional to 3,124.61, 4,686.56 and 933.18

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Solution

The fourth proportional to 3,124.61, 4,686.56 and 933.18 is: 1,399.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.61 : 4,686.56 = 933.18 : x
  2. Step 2: Convert to fraction form
    3,124.61/4,686.56 = 933.18/x
  3. Step 3: Cross multiply
    3,124.61x = 4,686.56 × 933.18
  4. Step 4: Simplify right side
    3,124.61x = 4,373,404.06
  5. Step 5: Solve for x
    x = 4,373,404.06/3,124.61
  6. Step 6: Final answer
    x = 1,399.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.